mount | grep /mnt/webdav
echo "!! test Mount"
./webdav.sh mount /mnt/webdav/ 2747350438@qq.com:ac5tj7ti5gxfnpqy@https://dav.jianguoyun.com/dav
mount | grep /mnt/webdav
echo "!! test UnMount"
./webdav.sh umount /mnt/webdav/